FlickrCC uses the Flickr API to search for CC licensed images and for images with a license permitting derivative use provides basic image editing operations (e.g., cropping, adding text) online, without downloading the image and starting a paint program.

Last month we noted a tool that searches Flickr for CC licensed images based on color, hue, and saturation.

You can also browse and search CC photos at Flickr and via search.creativecommons.org.

Via Learn Online.